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Northwest Africa 8424
Basic information Name: Northwest Africa 8424
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 8424
Observed fall: No
Year found: 2014
Country: (Northwest Africa)
Mass:help 52 g
Meteoritical Bulletin:  MB 104  (2015)  L3
Recommended:  L3    [explanation]

This is 1 of 726 approved meteorites (plus 1 unapproved name) classified as L3.   [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 29 Jan 2015
Writeup from MB 104:

Northwest Africa 8424 (NWA 8424)

(Northwest Africa)

Purchased: 2014 Mar

Classification: Ordinary chondrite (L3)

History: Purchased in Temara, Morocco by Adam Aaronson in March 2014.

Petrography: (A. Irving and S. Kuehner, UWS) Medium sized (1.3±0.8 mm), separated, well-formed chondrules are set in a fine grained matrix containing altered metal.

Geochemistry: Olivine, Fa0.4-36.3; Cr2O3 in ferroan olivine = 0.05-0.06 wt.%, mean 0.05±0.01 wt.%, N = 7; orthopyroxene, Fs2.1-29.2Wo0.5-0.8, N = 3; subcalcic augite, Fs18.6Wo36.7; augite, Fs7.1Wo48.1.

Classification: Ordinary chondrite (L3).

Specimens: 10.5 g including one polished thin section at UWB. The remainder is held by Aaronson.

Data from:
  Table 0
  Line 0:
Place of purchase:Temara
Date:P 2014 Mar
Mass (g):52
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):0.4-36.3
Ferrosilite (mol%):2.1-29.2
Wollastonite (mol%):0.5-0.8
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):10.5
Type spec location:UWB
Main mass:A. Aaronson
Comments:M1684; submitted by A. Irving
   and collections
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
Aaronson: Sahara Overland Ltd., Harhora, Temara, 12000, Morocco (private address; updated 3 Jan 2010)
References: Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
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     This is 1 of 7885 approved meteorites from (Northwest Africa) (plus 1958 unapproved names)

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